[PATCH] Ensure mktime sets errno on error (bug 23789)

[Paul Eggert]

On 10/26/18 9:12 AM, Albert ARIBAUD wrote:
> the solution is to keep tzset() an alias
> of __tzset(), keep __tzset() a 'void (*) (void)' as it is now, and
> introduce another function

Yes, that sounds right.